The M18 FUEL 1/4 In. hex impact driver is the fastest, most compact, and most powerful tool in its class. The POWERSTATE brushless motor delivers up to 2000 In./Lb. of torque and up to 30% faster driving speed, increasing user's productivity for the most demanding fasteners on the job. With the most compact tool at only 4.59 In. in length, users will have more access in tight spaces. The REDLINK Plus intelligence ensures maximum performance and protects from overloads, heating or over-discharge. The REDLITHIUM battery pack (not included) delivers more work per charge and more work over the life of the pack than competitors. The 4-mode DRIVE CONTROL provides greater control over output speed and power for greater versatility. Self-tapping screw mode provides faster installation time by reducing stripping of fasteners. Single-handed bit insertion for faster, easier changing of bits. Premium rubber overmold withstands corrosive materials and provides increased comfort when in use. Bare tool - battery and charger not included.